A box contains cards marked with the number one to twenty. one card is drawn from this box at random what is the probability that number on the card is (a)prime number (b)a perfect square (c) a multiple of 5
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favorable outcomes=8
TOTAL OUTCOMES=20
therefore
probability=8/20
=> 1/10 or 0.1
TOTAL OUTCOMES=20
therefore
probability=8/20
=> 1/10 or 0.1
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